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WO2000041945A1 - Fermetures resistant aux tentatives d'ouverture des enfants - Google Patents

Fermetures resistant aux tentatives d'ouverture des enfants Download PDF

Info

Publication number
WO2000041945A1
WO2000041945A1 PCT/GB2000/000074 GB0000074W WO0041945A1 WO 2000041945 A1 WO2000041945 A1 WO 2000041945A1 GB 0000074 W GB0000074 W GB 0000074W WO 0041945 A1 WO0041945 A1 WO 0041945A1
Authority
WO
WIPO (PCT)
Prior art keywords
neck
closure
closure means
retention
child resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2000/000074
Other languages
English (en)
Inventor
Leyton Stuart Dodge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU30612/00A priority Critical patent/AU3061200A/en
Publication of WO2000041945A1 publication Critical patent/WO2000041945A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/06—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of different actions in succession
    • B65D50/063—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of different actions in succession the closure or container being provided with two spaced sets of screw threads or the like

Definitions

  • This invention relates to child resistant closures and in particular, but not exclusively, to child resistant closures for use on glass containers.
  • Child resistant closures are used for many containers to reduce the likelihood of young children gaining access to medicines or hazardous substances such as solvents, powerful cleaning agents, etc. At the same time as being resistant to opening by young children it is also important that the closure may be operated and undone by adults of all ages.
  • a known child resistant closure for glass bottles or containers comprises inner and outer parts with opposed ratchet drive portions which are urged apart by a spring bias; to open such a device requires an axial force to push the ratchet portions into engagement, together with a simultaneous twisting movement to unscrew the closure.
  • the closure comprises two moulded parts which need to be assembled together before use and these additional moulding and assembly steps add to the cost.
  • the neck of the bottle is provided with one or more radial projections each having an abutment surface and a sloping flank.
  • a one piece moulded cap is provided, having an internal thread and a depending skirt with resiliently deformable locking portions. When screwing the cap on, the locking portions deform and ride over the sloping flanks in ratchet fashion, but turning the cap in the unscrewing sense brings the locking portions against the abutment surf ce. To unscrew the cap, it must be squeezed at the same time as turning so that the locking portions are displaced radially beyond the radial projections, to allow unrestricted rotation.
  • Glass bottles are preferred for many medicines and tablets because they can be easily cleaned sterilized as required, and also they do not tend to absorb vapours or liquids or contaminants.
  • upwardly and downwardly refer to a closure arrangement in which the neck region is pointing generally vertically upwardly.
  • this invention provides a one-piece child resistant closure means for a glass container having a rotationally engageable neck portion.
  • the neck portion is preferably threaded for engagement with a correspondingly internally threaded portion of the closure means, although other types of rotational engagement are possible.
  • this invention provides a child resistant closure means for rotational engagement with a neck of a container, said child resistant closure means comprising rotational engagement means for being rotationally engaged and disengaged from said neck, said closure further including releasable retention means for engagement with a corresponding retention means on said neck or associated therewith, said closure means being adapted such that, on rotational disengagement from said neck, release of said retention means is required to allow removal of said closure.
  • this invention provides a child resistant closure means for closing a neck portion of the type comprising a distal rotational engagement portion and a proximal retention abutment facing away from the opening
  • closure means comprises a cap portion with a complementary rotational engagement portion, and retention means for retaining said closure means adjacent the neck portion to obscure the neck opening on undoing said rotational engagement portions, said retention means being releasable to allow removal of said closure means from said neck portion.
  • the retention means is preferably such that the rotational engagement portions need to be completely undone prior to release of said retention means.
  • closure means as described may be undone by sequential operations of twisting and thereafter release of the retention means which makes operation somewhat easier for those with weaker grips, whilst still providing a considerable resistance to opening by young children.
  • the rotational engagement means comprise complementary threaded portions.
  • the rotary engagement means could comprise other forms, such as a bayonet type or labyrinthine coupling.
  • the cap portion includes a resiliently deformable skirt or the like which depends from the cap portion and defines said retention means.
  • Said retention means preferably comprises an inwardly directed rib or abutment surface which, when the skirt is relaxed, co- operates with the retention abutment on said neck portion to limit axial separation of the closure means from the neck portion, but, when the skirt is squeezed appropriately, deforms to allow full axial separation.
  • said closure means includes an internal circumferential sealing or guide surface adapted m use to locate within the throat of the neck to guide said closure to assist rotational engagement when the closure is being applied and/or to provide some resistance to inadvertent release of the contents when the closure is not screwed up.
  • the axial dimensions of the closure means are such that, when the closure is fully unscrewed, the circumferential guide or sealing surface remains engaged in or adjacent the opening of the throat of the neck substantially until the retention abutment on said neck portion is abutted by the abutment surface on said closure means .
  • this invention provides a child- resistant closure means for rotational engagement about an engagement axis with a neck portion on a container, said neck re ⁇ i on havin ⁇ a downwardly facinq enerallv radial abutment surface, said closure means comprising rotational engagement means and releasable retention means for axially engaging said abutment surface in use to limit axial separation of said closure from said neck region, said retention means being releasable to allow complete separation of said closure.
  • the invention also extends to a bottle or container fitted with a child resistant closure of this invention.
  • Figure 2 is a view similar to Figure 1 but with the closure rotationally disengaged but still axially retained on the neck of the bottle;
  • Figure 3 is an underneath plan view of the closure of this invention showing the retention ribs in the relaxed (retaining) state
  • Figure 4 is a cross-sectional view through a closure of this invention when removed from the bottle.
  • the closure 10 of this invention is intended to be used in conjunction with a standard form of glass bottle 12 (although the invention is not limited to such containers) .
  • the neck 14 is provided with an upper threaded portion 16 beneath which is a plain cylindrical surface 18 which extends circumferentially and terminates in an inwardly directed shoulder 20 which provides a downwardly facing annular continuous radial abutment surface.
  • Such bottles are readily available and designed for use with a wide range of caps, some of which use the inward shoulder 20, for example to retain the rolled-over lower portion of a perforated metal tamper-proof seal.
  • handling devices may use the shoulder 20 as a pick up or location surface.
  • the embodiment of the child resistant closure of the present invention uses this facet of bottle design to provide a two-stage engagement.
  • the closure 10 has a cap portion 22 which is internally threaded and includes a cylindrical guide/sealing surface 24 which fits within the open neck of the bottle when the bottle is closed by the closure 10.
  • a cylindrical skirt 26 depends from the cap portion and includes two diametrically opposed, radially inwardly directed ribs 28.
  • the diameter of the skirt 26 and the sizing of the ribs 28 is such that the internal diameter of the skirt away from the rib region is greater than the outer diameter of the shoulder 20, but that the diametral spacing of the ribs 18 is less than the outer diameter of the shoulder 20, and such that there is sufficient radial clearance between the internal diameter of the skirt and the bottle neck to allow the skirt to be pinched at a location approximately 90° to the ribs so that the ribs are deformed radially outwardly of the shoulder.
  • the closure In use, to unscrew the closure from the position shown in Figure 1, the closure is rotated in the appropriate direction to disengage the threads and to bring the closure to the position of Figure 2. In this position, the closure is still retained axially by axial co-operation or engagement of the ribs 18 and the shoulder 20. It should be noted that, in this position, the cylindrical guide/sealing surface 24 is in close proximity to the open neck of the bottle. Thus if the bottle contains a fluid, the sealing surface will restrict the amount of loss of contents. In addition, this surface also assists engagement of the threaded portions of the cap and bottle. This means that there is a possibility that a child having undone the cap without removing it, may reverse the process and screw the cap up .
  • the axial length of the circumferential sealing/guide surface, and the axial spacing between the threaded portion and the inwardly directed ribs may be selected with regard to the axial spacing of the abutment shoulder for the bottle opening to provide the required interaction between the closure and the bottle neck.
  • the axial disengagement be effected before the threaded portions are completely undone; it may be required that the sealing/guide surface protrudes part way into the neck of ⁇ y ⁇ y c / and so on.
  • the diameter of the sealing/guide surface may be made a tighter or looser fit within the bottle neck.
  • the cap could have radially inwardly directed ribs (e.g. 4 at
  • the internal and/or external guides act to keep the cap generally aligned with the neck prior to and whilst the cap is screwed on to the neck. This alignment is useful not only for engaging the thread, but also to reduce the possibility of leakage, to give the closure a sense of robustness and security, and to prevent the cap from being twisted to move the ribs past the abutment without squeezing the cap.
  • the cap may be stiffened at the diametrically opposed points where the cap is squeezed, and also adjacent the ribs, e.g. by locally thickening the skirt in these regions. This feature an be useful in ensuring that the squeezing action causes the ribs 28 to be displaced sufficiently to clear the should 20, by effectively providing regions of greater flexibility at the points marked 30 on Figure 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne une fermeture résistant aux tentatives d'ouverture des enfants, destinée à un récipient (12) à goulot fileté (14) pourvu d'une butée orientée vers le bas (20), qui comprend un capuchon avec une partie filetée, et une jupe déformable (26) comprenant des rainures de retenue (28) qui coopèrent avec ladite butée (20), afin de maintenir la fermeture adjacente à l'ouverture du goulot, jusqu'à ce qu'on presse le capuchon afin de dégager les nervures de retenue de la butée (20).
PCT/GB2000/000074 1999-01-14 2000-01-14 Fermetures resistant aux tentatives d'ouverture des enfants Ceased WO2000041945A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU30612/00A AU3061200A (en) 1999-01-14 2000-01-14 Child resistant closures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9900744.5 1999-01-14
GB9900744 1999-01-14

Publications (1)

Publication Number Publication Date
WO2000041945A1 true WO2000041945A1 (fr) 2000-07-20

Family

ID=10845925

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/000074 Ceased WO2000041945A1 (fr) 1999-01-14 2000-01-14 Fermetures resistant aux tentatives d'ouverture des enfants

Country Status (2)

Country Link
AU (1) AU3061200A (fr)
WO (1) WO2000041945A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4555883A3 (fr) * 2015-07-17 2025-07-16 RAI Strategic Holdings, Inc. Système de liquide contenu pour remplir des dispositifs de distribution d'aérosol

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827593A (en) * 1973-03-16 1974-08-06 K I C Inc Container safety closure
US4579239A (en) * 1984-04-24 1986-04-01 Roymere Limited Container and child resistant closure assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827593A (en) * 1973-03-16 1974-08-06 K I C Inc Container safety closure
US4579239A (en) * 1984-04-24 1986-04-01 Roymere Limited Container and child resistant closure assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4555883A3 (fr) * 2015-07-17 2025-07-16 RAI Strategic Holdings, Inc. Système de liquide contenu pour remplir des dispositifs de distribution d'aérosol
US12434023B2 (en) 2015-07-17 2025-10-07 Rai Strategic Holdings, Inc. Contained liquid system for refilling aerosol delivery devices

Also Published As

Publication number Publication date
AU3061200A (en) 2000-08-01

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